Real-Time Warnings: When the air pressure or temperature of any tire goes outside the predetermined range, both the monitor display and an o alarm will alert you. You are also notified when the battery of a tire sensor is low. 2 Charging Options: Supports USB cable charging and solar charging. Does not occupy the car’s 12V socket, allowing the tire pressure monitoring system to operate continuously. 6 Alarm Modes: Fast leak alarm, slow leak alarm, high-pressure alarm, high-temperature alarm, sensor fault alarm, and sensor low battery alarm. Easy Installation: Self-installation in 10 minutes: 1. Remove the valve dust cap and screw on the hexagonal nut; 2. Attach the sensor; 3. Use the wrench to securely tighten the hexagonal nut onto the sensor; 4. Check for air leaks using soapy water. Multipurpose: Suitable for various vehicle types with tire pressure under 3.2 Bar, including sedans, SUVs, and MPVs. Type: Tire Pressure Monitoring System Sensor Working Voltage: 2 - 3.6V Display Working Voltage: 3.5 - 4.2V Pressure Units: Psi / Bar Temperature Units: °C, °F Operating Frequency: 433.92MHz ± 20KHz Monitoring Pressure Range: 1.5 - 3.2 Bar (15-35psi) Display Battery Capacity: 280mAh Sensor Battery Capacity: 120mAh Material: ABS Color: Black + wood grain Package Contents: 1 x Tire pressure monitoring system 4 x External sensors 4 x Anti-theft nuts 1 x Wrench 1 x USB cable 1 x English manual Note: The package includes only the items listed above. Other items are not included. Note: Lighting and display differences may cause slight color variations between the product image and the actual item. Measurement error allowance: +/- 1-3cm.